C++da Variables and Data types

Data types

Int :

short, long, int (butun sonlar);

Real number :

float, double (kasr sonlar);

Character :

char (belgilar).

int age=14;
cout << age + 5 * 26 << endl; (144)
age= -15

D…


This content originally appeared on DEV Community and was authored by NilufarBukhorova

Data types

Int :

short, long, int (butun sonlar);

Real number :

float, double (kasr sonlar);

Character :

char (belgilar).

  • int age=14;
  • cout << age + 5 * 26 << endl; (144)
  • age= -15

Declaration

  • bu o'zgaruvchilarni e'lon qilish;
    • int son;

Assignment

  • bu o'zgaruvchiga qiymat o'zgartirish;
    • son=25;

Initalization

  • o'zgaruvchini e'lon qiish vaqtida birdaniga qiymat berish;
    • int boshqason = 16;

o'zgaruvchi nomi harflar, raqamlar va _ belgisidan iborat bo'lishi kerak.

  • int a=5;
  • int b=a;
  • int c=a+b;

int a;
float b; int a,c;
int c; float b,d;
float d;

Garbage value

  • declaration kiritilsayu, o'zgaruvchi miqdori kiritilmasa councilda chiqadigan taxminiy sonlar 
   int a= 123.45 --> 123
   float a= 123 --> 123.00

int vazn = (int)[majburlash] 120.123

int a=10;
int b= a+10;
int c= a+b;int d+ a+b+c;

a=b=c=d=60

cin >>

  • o'zgaruvchini o'qiydigan komanda

char --> Ascii table

  • char belgi= 'a'

  • cout << (char) (belgi/3) << endl; [majburlash]

iomanip

  • input output manipulation, kutubxona

setw()

  • o'zgaruvchi uchun print qlishda bo'sh katakchalar so'raydi
    • cout << setw(15) << son << endl; [by default right-aligned]
    • cout << left << setw (15) << son << endl;

setfill('')

setw() orqali ajratilgan yacheykalarni belgilar bn to'ldiradi


This content originally appeared on DEV Community and was authored by NilufarBukhorova


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